journal article·2018-11Open access

Braiding ultrathin layer for insulation of superconducting Rutherford cables

Sree Shankhachur Roy, Prasad Potluri, Simon Canfer, George Ellwood

Journal of Industrial Textiles· Volume 48· Issue 5

Abstract

Over-braiding of superconducting Rutherford cable was used for the composite insulation in this research. Braiding was a suitable alternative to fabric tape winding for achieving ultrathin insulation with required electrical breakdown voltage. A brief overview of the superconducting magnets, their application and requirements of insulation has been covered in order to bridge the literature gap between braiding and the superconducting magnet field of studies. Organic size coating on the fibre leaves carbon residue during high temperature treatment of the cables and hence glass fibre was desized before braiding. Braiding difficulties with desized glass fibre and possibility of braiding using compatible size coating have been discussed. The requirement of ultrathin braided layer was achieved with sufficient surface coverage with a suitable braid angle and fibre. As part of the study, braid cover factor variation on the surface of the cable was investigated and it was discussed using image analysis.
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Research context

OpenAlex topics: Thermal Analysis in Power Transmission · High voltage insulation and dielectric phenomena · Superconducting Materials and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Robotics and Textile Composites Group, Northwest Composites Centre, The University of Manchester, UK

Rutherford Appleton Lab (RAL), Science and Technology Facilities Council (STFC), UK

References (31)

Show source-provided references
1. Branscomb D, Beale D, Broughton R. New directions in braiding. J Eng Fiber Fabr 2013; 8: 11–24.
2. 10.1002/9781118097298.weoc02010.1002/9781118097298.weoc020 ↗
3. Fishlock D. A guide to superconductivity. London: Macdonald 1969.
4. Owens FJ and Poole CP. The New Superconductors. New York: Springer 1996.
5. Kresin VZ and Wolf SA. Fundamentals of Superconductivity. New York: Springer 1990.10.1007/978-1-4899-2507-7 ↗
6. Ford PJ and Saunders GA. The Rise of the Superconductors. Boca Raton: Taylor & Francis 2004.10.1201/9780203646311 ↗
7. Wilson MN. Superconducting Magnets. Oxford: Clarendon Press 1986.
8. Ginzburg VL and Andryushin EA. Superconductivity. Singapore: World Scientific 2004.10.1142/5580 ↗
9. Meuris C and Rifflet J-M. Superconducting magnets for the LHC. Clefs CEA n°56 (The French Alternative Energies and Atomic Energy Commission) pp.4–9 http://wwwceafr/var/cea/storage/static/gb/library/Clefs56/contentshtm (2008 accessed 8 Jun 2015).
10. Livingston MS, Blewett JP. Particle accelerators, New York: McGraw-Hill, 1962. .
11. 10.1109/77.92031110.1109/77.920311 ↗
12. 10.1007/978-1-4615-4293-3_1810.1007/978-1-4615-4293-3_18 ↗
13. Baynham D and Canfer S. NB3SN accelerator magnets-insulation review. In: WAMS-2004 workshop on accelerator magnet superconductors Archamps France 22–24 March 2004 p.63.
14. CERN_The_European_Organization_for_Nuclear_Research. LHC Machine Outreach- Super conducting cable http://lhc-machine-outreach.web.cern.ch/lhc-machine-outreach/components/cable.htm (accessed 4 January 2016).
15. Bottura L. Introduction to accelerator physics superconducting magnets, Geneva: CERN Accelerator School, 2012. , http://indico.cern.ch/event/173359/contributions/275963/attachments/218786/306422/SCmagnets.pdf (2012, accessed 2 March 2015).
16. Gupta R. Magnet design and coil optimization USPAS course on superconducting accelerator magnets. Santa Barbara: Superconducting Magnet Division Brookhaven National Laboratory 2003.
17. Kyosev Y. Braiding technology for textiles, Amsterdam: Elsevier Science, 2014. .
18. 10.1533/9781855737549.110.1533/9781855737549.1 ↗
19. Canfer S Baynham E and Ellwood G. Insulation development – conventional insulation. Final Report v.6 CARE-NED Work Package 4 CCLRC Rutherford Appleton Laboratory 2007.
20. 10.1109/TASC.2008.92186210.1109/TASC.2008.921862 ↗
21. 10.1109/TASC.2008.92076210.1109/TASC.2008.920762 ↗
22. Arkan T Chichili D and Terechkine I. Studies of S-2 fiberglass insulation for Nb3Sn cable. Batavia IL: Fermilab http://lss.fnal.gov/archive/vlhc/fermilab-vlhcpub-197.pdf (1998 accessed 23 January 2015).
23. Canfer S Baynham DE and Greenhalgh R. Insulation development for the next European dipole. In: AIP conference proceedings Keystone Colorado (USA): IOP Institute of Physics Publishing Ltd 29 August–2 September 2005 pp.298–305.10.1063/1.2192364 ↗
24. 10.1109/TASC.2002.101862410.1109/TASC.2002.1018624 ↗
25. HYBON®2001 roving Technical Datasheet PPG Fiber Glass http://www.ppg.com/glass/fiberglass/products/documents/2001_rev42008_.pdf (accessed 12 August 2014).
26. 10.1016/0022-3093(90)90188-R10.1016/0022-3093(90)90188-R ↗
27. AGY. 933 S-2 Glass® Yarn http://www.agy.com/wp-content/uploads/2014/03/933_S-2_Yarn-Aerospace.pdf (accessed 4 Jan 2016).
28. 10.1016/j.compstruct.2006.04.04610.1016/j.compstruct.2006.04.046 ↗
29. 10.1016/S1359-835X(03)00061-710.1016/S1359-835X(03)00061-7 ↗
30. 10.1016/j.compositesa.2014.04.02010.1016/j.compositesa.2014.04.020 ↗
31. Nishimoto H, Ohtani A, Nakai A, et al. Generation and prediction methods for circumferential distribution changes in the braiding angle on a cylindrical braided fabric. Proc Instit Mech Eng Part L: J Mater Des Appl 2010; 224: 71–78.